Dinan D660-0080 High Flow Middle Exhaust for BMW M550i xDrive

The Dinan High Flow Middle Exhaust is engineered to enhance both performance and sound for the 2018-2023 BMW M550i xDrive. This precision-crafted exhaust section replaces the restrictive factory middle exhaust with a larger diameter system designed to reduce backpressure and improve exhaust flow.

Key Features:

• Premium 304 stainless steel construction for durability and corrosion resistance
• Larger 3-inch (76mm) diameter tubing replaces the stock 70mm tubing for increased flow capacity
• Eliminates the factory resonator between the catalytic converter and rear muffler for enhanced exhaust note
• Mandrel-bent X-pipe crossover minimizes restriction and balances exhaust pulses
• Produces a deeper, sportier exhaust tone without excessive drone
• Direct bolt-on installation with all necessary mounting hardware included
• Maintains compatibility with factory exhaust tips and rear muffler

This middle exhaust section is part of Dinan's comprehensive performance exhaust system lineup and can be combined with other Dinan exhaust components for a complete exhaust upgrade. The result is improved throttle response, increased power delivery, and a more engaging driving experience with a refined sport exhaust sound.